33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
Product Overview
This heavy‑duty accumulator diaphragm (cup seal) is engineered for Sandvik HL800T and HL810T hydraulic rock drifters. It serves as the core isolating component inside the drill accumulator, separating hydraulic oil from nitrogen gas. Manufactured from imported high‑performance neoprene composite material reinforced with nylon fiber, the part delivers outstanding fatigue resistance, impact resistance and gas‑oil isolation performance. It is a direct replacement for original Sandvik diaphragm, effectively solving common failures such as weak percussion, nitrogen leakage, oil‑gas mixing and unstable drilling power, extending service life under continuous high‑intensity underground mining and tunneling operation.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Sandvik HL800T / HL810T Rock Drill Accumulator Diaphragm (Cup Seal) |
Applicable Model |
HL800T, HL810T Hydraulic Rock Drifter |
Compatible Series |
Sandvik HL‑Series Hydraulic Rock Drill |
Main Material |
Imported Neoprene Rubber + Nylon PA66 Fiber Reinforcement |
Max Working Pressure |
28MPa |
Working Temperature |
-25°C ~ +110°C |
Kit Contents |
1 piece accumulator diaphragm (cup seal) |
Cross Reference OEM No. |
152‑357‑98 / 15235798 |
Net Weight |
Approximately 0.42kg |
Applicable System |
Rock drill accumulator nitrogen‑hydraulic isolation system |
Warranty |
12 Months |
Key Selling Points
1. 100% Exact OEM Replacement.Fully compatible with original Sandvik HL800T / HL810T rock drifter. Matches OEM part number 152‑357‑98. No modification required for direct field installation.
2. Premium Reinforced Composite Material.Core diaphragm adopts high‑grade neoprene rubber compound with embedded nylon fiber reinforcement. Excellent anti‑fatigue, gas‑tight and oil‑resistant performance, stable operation within‑25°C ~ +110°C working range.
3. Reliable Oil‑Gas Isolation & Anti‑Fatigue Performance.Every unit undergoes cyclic pressure fatigue testing under 28MPa rated working pressure. Prevents nitrogen leakage and oil‑gas mixing, maintains steady percussion output and consistent drilling efficiency.
4. Single‑Unit Critical Wear‑Part Solution.Independently supplied accumulator diaphragm, targeted for on‑site quick maintenance. Reduces equipment downtime and lowers mine operation and spare‑parts cost.
5. Strict Factory Quality Control.Every diaphragm passes air‑tightness, cyclic pressure and accelerated aging tests before delivery. Meets OEM dimensional and performance standards for heavy‑duty mining working conditions.
6. Application Scope.Suitable for Sandvik HL800T / HL810T rock drifter mounted on various mining & tunneling equipment:
• Underground mining drill rigs
• Tunnel boring & blasting drill jumbos
• Hard‑rock excavation machinery
• Metallurgical mine drilling equipment
• Hydraulic rock drilling systems
• Heavy‑duty underground mobile drilling machinery
Welcome to HOVOO, a Chinese seal factory. Production of PU, Rubber and PTFE seals. The seals include O-ring, piston seal, rod seal, Gray ring and gas seal.
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